Abstract
The behaviour of the chiral condensate in QCD is investigated by means of a study of the distribution of the zeros of the partition function in the complex quark-mass plane. Simulations are performed at fixed temperature on three different spatial volumes at β = 5.04 and at β = 4.9 and β = 5.2 on a 4 4 lattice. Evidence is found for a chirally related transition at non-zero quark mass in the intermediate coupling region for β < 5.2 but superimposed upon a smooth behaviour for the condensate. The critical mass at which this transition is found in only weakly dependent on the spatial volume and decreases with decreasing temperature.
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